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Bahrain's King Hamad bin Isa al-Khalifa attends the opening meeting of the Arab Summit in Sharm el-Sheikh, in the South Sinai governorate, south of Cairo, March 28, 2015. Arab League heads of state are holding a two-day summit to discuss a range of conflicts in the region, including Yemen and Libya, as well as the threat posed by Islamic State militants. REUTERS/Amr Abdallah Dalsh